A predictive model of corrosion pit geometry of steel in aqueous sodium chloride solution

被引：0
|
作者：
Salleh, Suhaila [1 ,2 ]
机构：
[1] Univ Tekn Malaysia Melaka, Fac Mech Engn, Durian Tunggal 76100, Melaka, Malaysia
[2] Univ Tekn Malaysia Melaka, Ctr Adv Res Energy, Durian Tunggal 76100, Melaka, Malaysia
来源：
PROCEEDINGS OF MECHANICAL ENGINEERING RESEARCH DAY 2017 (MERD) | 2017年
关键词：
Model; corrosion; steel; CARBON-STEEL; CRACKING;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Pitting corrosion is known as a destructive type of localized corrosion. This paper presents the prediction of corrosion pit propagation of steel immersed in alkaline solution. With regard to the electrochemical reactions inside a micropit, a two-dimensional model that allows the prediction of pit propagation and its shape is developed. COMSOL Multiphysics version 4.2 is used to solve the Nernst-Planck equations for the potential variations and mass transport. The result of the simulation shows a deep trough formation that suggests a reduction in the corrosion rate after a period of time and the active region inside the pit turning passive.
引用
收藏
页码：62 / 63
页数：2
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